Deflector for gravity-conveyers.



M.I c. scHwAB. DBFLEUTOB. POB GRAVITY GONVEYEBS.

\ APPLIGATIOI FILED 00T. 24,

i Patented July 6,1909.

. lUNITED STATEQATEN T OFFICE.

MARTIN C. SCHWAB, OF CHICAGO, ILLINOIS, ASSIGNOR TO GRAVITY lCONVEYOR COMPANY,

A CORPORATION OI*` NEW YORK.

DFLEGTOR FORY GRAVITY-CONVEYERS.

Specification of Letters Patent.

Patented July e, 1909.

vApplication ined center-24, i907. serial No. 398,964.

provement in Delectors for Gravity-Conveyers,

tion.

My invention relates to spiral veyers, and one of its objects is t of which the following is a specificaravity cone provision of means to vprevent the edges of dooropenings or door jambs from being struck by boxes or other articles in their descent through the conveyer.

Other objects will appear hereinafter, the novel combinations of elements being set forth in the appended claims.

Figure 1 is a sectional elevation of a ortion of a spiral or gravity conveyer to 'which invention is applied; Fig. 2 is a section m talien on the line 2-2 of Fig. 1; and Fig; 3ds.

a section taken on the line 3-3 of Fi 1.

The conveyer comprises an outer s ell or casing 1, an inner core 2, andan interposed s iral blade 3. A door 4 hinged at 5 to the s ell 1 is conveniently located between the floors 6, 6 as a closure for the intake o enin ',Of'the conveyer. These parts are o usua construction.

It will be observed ythat the door is inclined in the direction of the adjacent portion of the spiral blade 3, and that the lower edge C of the door opening is a short distance above the. blade 3. A guard or shield A is laced within the conveyer 'at 'or near the ower ed e of the door. This ard ismade preferab j; of sheet metal andl1 wall or s ield 7 mounted on the blade 3 in this instance perpendicular thereto, and^ extending the length of the intake o ening or a vshort distance beyond each end o said opening. This vertical wall is preferably spaced from the casin 1 except at its ends, and as here shown is sightly curved toward the cen; ter' of the conveyer. The `u per edge of the shield 7 may be flush with t e lower edge C of the door opening, and aange B formed on the shield 7 extends to the edge C andy forms a closure for the space between the shell 1 and the shield 7 to prevent articles.

which may be laced in the conveyer from dro ping into t e space between the shield an the casingl. The O'uard may be secured in positionin any desired manner, as for example by soldering or riveting.

comprises a 'ing `formed with aflatera guard the casing i The guard acts asa defiector .for articles delivered tothe conveyer which in their descent are thrown against the shell 1, and

thus serves as a means for protecting the edges of the door openings or door jambs `from being struck by such articles, particu- 'larly heavy angular boxes and the like.` l. It

Inav also serve to protect descending articles from beingI injured by'striking against'the edges of door openings. In'this lnstance I have shown the upper surface B of the delector conforming to the inclination of the intake o ening and slightly below the edge C, althougd) the same.

It should alsobe noted that the del'iector need not have the flange B if the wall 7 is of sufficient height, is rigidly `secured in position and extends downwardly along the blade 3 from a oint above the door opening..

Furthermore, t e wall? may be shortened in length so that oneof its ends connects with the shell l or is adjacent thereto just above the. upper vertical edge of the intake opening; orinstead of a hollow or boxlike deflector as shown, a solid guard may be used and the Lower ortion out olf if. desired.`

Obvious y those skilled in the art may make various changes in thedetails and arrangement of parts vWithout departing from the s irit and scope of my invention as defined y the claims, and I desire therefore not to be limited to the precise construction here@ in disclosed.

What I claim is it may be flush therewith or above- 1. The combination of a spiral conveying surface and an outer wall having anopening therein, and means for deflectingdescending articles away from the said opening.

2. The combination of a spiralaconveying surface and an ,inclosing casing having an openin therein, and means for reventin deseen ing articles from striking th said openmg.

3. In a gravity conveyer, the combination with an inclined conveyin surface, of 'a'casopenin and a lng.

4. In a gravity conveyeig'the combination with a tubular casing formed. with a lateral door opening, of a spiral conveying-surface extending past said in the casing at or near the opening.

5. In agravity conveyer,'thesombination e edges o at or nean'tne openlos opening, and a dellec'tor.`

with a tubular casing, a spiral blade, and a door, of a guard in position to deflect articles away i'roin the door in their descent through 8. In a conveyor, the combination with a casing formed with a door opening therein, and a spiral blade, of a guard wall or shield resting on the spiral blade and having one of its ends adjacent to or in contact with the said casing.

9. In a conveyer, the combination with. a

casing formed with a door opening therein, and a spiral blade, of a guard wall or shield on the spiral blade substantially erpendicular thereto, positioned opposite t 1e door and extending the length thereof.

10. In a conveyer, the combination with a tubular casing formed with adoor opening therein., and a spiral blade, of a guard wall or vshield on the spiral blade substantially perpendicular thereto, having its ends adjacent to the opposite ends of the-door, and inclined in a direction opposite to the adjacent wall of the casing.

11. In a conveyer, the combination with a casing and a spiral blade therein, said casing being provided with a lateral door opening having its lower edge a short distance above .the adj acont portion oi' the spiral blade, of a guard or shie d on the spiral blade substantially perpendicular thereto and having its upper edge substantially flush with the lower edge of the door .openingl 12. In a conveyer, the combination with a casing and a spiral blade therein, said casing being formedl with a lateral door opening, of

a' guard `wall within the casing op osite the door o ening and spaced apart t erefrorn, and a c osure for the space between the guard wall and' the door opening.

13. In a conveyer, the combinationwith a casing and a spiral blade, said casing' being providedwith a lateral door opening, of a guard vwall within the casing opposite the door opening and spaced apart therefrom, and a flange on the guard w' ll extending across the space between the. guard wall and door o ening. u

14. In a conveyer, the combination withl a tubular casing and avv s iral/blade therein, said casing being forme Wit a lateral door openin having its lower edge a short distance. a )ove the adjacent portion of the spiral blade, of a guard wall within the casing resting on the spiral blade substantially perpendicular thereto, opposite the door, spaced a art from the door, and having its u `per edge flush with the lower ed e of the oor, and a iiange on the guard wal covering the space between the guard wall and the lower edge oi" the door opening.

15. The combination with a conveying surface, of a deflector consisting of a curvedf body portion, and a langehaving itsV free edgecurved in the opposite direction.

' 16. The combination with a conveying surface and an outer cylindrical casing, of a sheet metal deiiector consisting oivav body portion curved in the arc oi a circle, a flange on one ofthe edges oi the body portion', said flange being substantially perpendicular'to the body portion and'havingits free edge curved in the opposite direction to the body.

portion and located adjacent to saidcasing.- In testimony Iwhereoi', I have signed lmy narne to this specification in the presence of two subscribing witnesses.

MARTIN l C. SCHWAB..

Witnesses:

CARL I. Sonnonnnn, J. F. JEDLEIKER. 

